EP0074192A3 - Chloro-trifluoromethyl pyridines - Google Patents

Chloro-trifluoromethyl pyridines Download PDF

Info

Publication number
EP0074192A3
EP0074192A3 EP82304307A EP82304307A EP0074192A3 EP 0074192 A3 EP0074192 A3 EP 0074192A3 EP 82304307 A EP82304307 A EP 82304307A EP 82304307 A EP82304307 A EP 82304307A EP 0074192 A3 EP0074192 A3 EP 0074192A3
Authority
EP
European Patent Office
Prior art keywords
chloro
trifluoromethylpyridine
trifluoromethyl pyridines
pyridines
trifluoromethyl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP82304307A
Other versions
EP0074192A2 (en
EP0074192B1 (en
Inventor
Graham Whittaker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to AT82304307T priority Critical patent/ATE24491T1/en
Publication of EP0074192A2 publication Critical patent/EP0074192A2/en
Publication of EP0074192A3 publication Critical patent/EP0074192A3/en
Application granted granted Critical
Publication of EP0074192B1 publication Critical patent/EP0074192B1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/61—Halogen atoms or nitro radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D213/26—Radicals substituted by halogen atoms or nitro radicals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyridine Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

3-chloro-5-trifluoromethylpyridine and/or 2,3-dichloro-5-trifluoromethylpyridine are produced by selective vapour-phase chlorination of 3-trifluoromethylpyridine or 2-chloro-5-trifluoromethylpyridine in the presence of a copper catalyst.
EP82304307A 1981-09-03 1982-08-16 Chloro-trifluoromethyl pyridines Expired EP0074192B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82304307T ATE24491T1 (en) 1981-09-03 1982-08-16 CHLOR-TRIFLUOROMETHYL-PYRIDINE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8126746 1981-09-03
GB8126746 1981-09-03

Publications (3)

Publication Number Publication Date
EP0074192A2 EP0074192A2 (en) 1983-03-16
EP0074192A3 true EP0074192A3 (en) 1984-03-21
EP0074192B1 EP0074192B1 (en) 1986-12-30

Family

ID=10524305

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82304307A Expired EP0074192B1 (en) 1981-09-03 1982-08-16 Chloro-trifluoromethyl pyridines

Country Status (7)

Country Link
US (1) US4448967A (en)
EP (1) EP0074192B1 (en)
AT (1) ATE24491T1 (en)
AU (1) AU549030B2 (en)
CA (1) CA1173835A (en)
DE (1) DE3274853D1 (en)
ZA (1) ZA826260B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5877863A (en) * 1981-11-04 1983-05-11 Ishihara Sangyo Kaisha Ltd Preparation of 3-chloro-5-trichloromethyl- or trifluoromethylpyridine compound
US4590279A (en) * 1982-11-26 1986-05-20 The Dow Chemical Company Preparation of (trifluoromethyl)pyridines under liquid phase conditions
US4547577A (en) * 1984-06-08 1985-10-15 The Dow Chemical Company Preparation of (trifluoromethyl)pyridines
US5319088A (en) * 1991-11-26 1994-06-07 Dowelanco Selective gas phase chlorination of polychlorinated β-picolines to produce 2,3,5,6-tetrachloropyridine and its precursors
AU7286598A (en) * 1997-05-09 1998-11-27 Dow Agrosciences Llc Preparation of 2,5-dichloro-(3-trifluoromethyl)pyridine
EP3696168B1 (en) 2018-01-05 2022-09-21 Zhejiang Lantian Environmental Protection Hi-Tech Co., Ltd. Method for preparation of 2-chloro-5-trifluoromethylpyridine
CN110627711B (en) * 2018-06-22 2021-02-05 浙江省化工研究院有限公司 Preparation method of chloro-trifluoromethyl pyridine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013474A2 (en) * 1978-12-07 1980-07-23 Imperial Chemical Industries Plc Preparation of 2-chloro-5-trifluoromethylpyridine
EP0078410A2 (en) * 1981-11-04 1983-05-11 Ishihara Sangyo Kaisha, Ltd. Process for producing 3-chloro-5-trifluoromethylpyridines

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA796150B (en) * 1978-12-07 1980-10-29 Ici Ltd Chlorination process
US4266064A (en) * 1979-03-19 1981-05-05 Ishihara Sangyo Kaisha Ltd. Process for producing chloro β-trifluoromethylpyridines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013474A2 (en) * 1978-12-07 1980-07-23 Imperial Chemical Industries Plc Preparation of 2-chloro-5-trifluoromethylpyridine
EP0078410A2 (en) * 1981-11-04 1983-05-11 Ishihara Sangyo Kaisha, Ltd. Process for producing 3-chloro-5-trifluoromethylpyridines

Also Published As

Publication number Publication date
EP0074192A2 (en) 1983-03-16
AU549030B2 (en) 1986-01-09
AU8795982A (en) 1983-03-10
US4448967A (en) 1984-05-15
EP0074192B1 (en) 1986-12-30
DE3274853D1 (en) 1987-02-05
ZA826260B (en) 1983-07-27
CA1173835A (en) 1984-09-04
ATE24491T1 (en) 1987-01-15

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